Stylographic pen



J. ABEGG.

STYLOGRAPHIC PEN.

APPLICATION FILED IuIIEz, 1920.

Patented. .May 311921.

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JULIUS ABEGG, `OF WEST HOBOKEN, NEW JERSEY, ASSIGNOR TO GORDON PENCOMPANY, OF KWEST HOBOKEN, NEVI JERSEY, A CORPORATION OF NEW JERSEY.

STYLOGRAPHIC PEN.

instance.

Application led June 26, 1920.

To all whomz't may concern.'

Be it known that I, JULrUs Annee, a citizen of the United States,residing at `West Hoboken, county of Hudson, State of New Jersey, (whosepost-ofiice address is 101 Palisade avenue, lest Hoboken, county ofHudson, State of New Jersey,) have invented certain new and usefulimprovements in Stylographic Pens; and l do hereby declare the'following to be a full, clear, and exact description of the invention,such as will enable others skilled in the art to which it appertains tomake and use the same.

rlhis invention relates to stylographic pens and is an improvement overapplicants co-pending application, iiled April 19th, 1920, Serial No. 375,1011.

The principal object of this invention is to provide for the supplyingof more air for venting the pen, to facilitate the continuous and easyiow of the ink without any leakage thereof when the pen is not in use.It has been demonstrated that heretofore pens of this type have not beensupplied with an adequate, or suliicient supply of air and that said airsupply means have been so small that they readily become clogged, andstopped up, during the constant use of the lVith the ypresent form ofpen, to be hereinafter more fully described, these difiiculties havebeen overcome, resulting in a successful and finished product, both inconstruction and operation.

Briefly considered this invention comprises a pen of :the typedescribed, consisting of a main point section similar to that disclosedin my former application, having positioned therein a supplemental pointsection, the supplemental point section being substantially reduced orcut away at its intermediate portion and being provided with air ventingchannels connecting this reduced portion with the atmosphere and alsoair channels forming a communication between Ithe vreduced portion andthe ink reservoir. In addition, there is pro-vided an air feedingaperture connecting the reduced portion with the cylindrical hollowportion of the supplemental point section, in which hollow portion, ispositioned the stylus holder in a manner quite similar to thepositioning of the stylus holder in my application aforementioned. lnthis application, however, that portion of the stylus holder within theSpecification of Letters Patent.

Patented May 31, 1921 Serial No. 391,878.

` flat blade-like formation in order to increase the space between thestylus holder and the hollow portion of the supplemental point section,and that portion of the stylus holder extending without the supplementalpoint section being enlarged and provided with diametrically oppositeink feeding grooves. It will be noted that by this construction more airspace is provided between the supplemental point section and the mainpoint section, and likewise a greater space for the air and ink isprovided between the stylus holder and the supplemental point section.

ln the accompanying drawings:

Figure 1 is a view, partly in section and partly in elevation,illustrating the pen as a whole with the various parts in theirassembled relations;

Fig. 2 is a sectional view showing the cut away portions of thesupplemental point section and stylus holder;

Fig. 8 is a view pantly in section and partly in elevation, taken atright angles to Fig. 2, illustrating the positioning of the stylusholder within the supplemental point section; and

Fig. l1 is a perspective showing a modification of the supplementalpoint section.

Referring more specifically to the drawings, the pen holder 1 carryingthe ink reservoir 2 and the conventional type of self lilling apparatus3, has positioned therein the main point section 4c. Secured within themain point section 4t is the supplemental point section 5, carrying thestylus holder 6. A substantial part of the intermediate portion of thesupplemental point section 5, contained within the main point section 4,is cut away or reduced Jforming flat surfaces 7 arranged ondiametrically opposite sides of said section providing an air reservoirbetween said supplemental point section and the main pointsection.Connecting these two oppositcly disposed cut away portions 7 areopenings 71, so that the air may freely flow from one side to the other.Connecting this reduced portion 7 with the atmosphere are air channels8. The air communication between the ink reservoir and this reducedportion or air chamber is provided for by air vents 9, so that acomplete and ample air communication can be established between theatmosphere and the ink reservoir by way of the reduced portion 7.

The supplemental point section 5 is also provided with a cylindricalbore 10 in which the stylus holder 6 is firmly positioned, an annularshoulder 11 being provided in the] upper end thereof forming a stop forthe angular end of the stylus holder. From this annular shoulder 11, thecentral bore is tapered to the writing point 12. Connecting thecylindrical bore 10 with the air chamber, formed by the reduced portion7, is an aperture 13 which will supply the necessary air to said boreduring the feeding of the ink therethrough.

In order to obtain as large a passage way as possible between the stylusholder 6 and theV cylindrical bore 10, that portion of the stylus holdercontained within the bore 10 is materially reduced and flattened ondiametrically opposite sides, forming substantially a iiat blade-likemember, as shown at 14. yA small portion of the stylus holder projectsfrom without the supplemental point section, which portion is enlargedand provided with ink feeding grooves 15.

In the modification as illustrated in Fig. 4, the reduced portion of thesupplemental point section 5, instead of being made flat, as shown inFigs. 1, 2 and 3, by cutting away the diametrically opposite sides ofthe supplemental point section, in this instance the cut away portion iscarried continuously around the intermediate portion, as shown at 16,and thereby doing away with the openings 71. The remaining portion ofthis supplemental point section is identical with the construction asdisclosed in Figs. 1, 2 and 3.

From the foregoing description it will be obvious that applicant hasprovided a stylographic pen in which ample air feeding means areprovided and the various passage ways and openings are proportionatelylarge enough to prevent any stopping up, or clogging of thesecommunications, as distinguished from former types of pensv of thischaracter, which, from practical demonstration and use, have been foundto be more or less ineiiicient for the reasons above stated.

What I claim is:

1. A stylographic pen, in combination with a pen holder, of 'a mainpoint section and a supplemental point section carried thereby, saidsupplemental point section being provided with a cylindrical bore forthe reception of a stylus holder, an air chamber between the main pointsection and the supplemental point section formed by materially reducingthe intermediate portion Vof said supplemental point section, airchannels leading from saidchambers to the atmosphere, air channelsforming communication between the air chamber and the ink reservoir andan air venting aperture connecting the reduced portion of saidsupplemental point section with the cylindrical bore of said section.

2. A stylographic pen, in combination with a pen holder, of a main pointsection, a supplemental point section carried thereby, said supplementalpoint section being provided with a cylindrical bore, a stylus holderpositioned partly within the bore of said supplemental point section,that portion of said stylus holder within the bore being substantiallyflat and of blade-like formation andthe part without said sectionenlarged and provided with ink feeding grooves, an air chamber betweenthe main point section and the supplemental point section, formed bymaterially reducing the intermediate portion of said supplemental pointsection, air channels leading from said chambers to the atmosphere, airchannels forming communication between the air chamber and the inkreservoir and an air venting aperture connecting the reduced portion ofsaid supplemental point section with the cylindrical bore of saidsection.

8. A stylographic pen, in combination with a pen holder, of a main pointsection, a supplemental point section carried thereby, said supplementalpoint section being provided with a cylindrical bore, arstylus holderpositioned partly within the bore of said supplemental point section,that portion oi' said stylus holder within the bore being substantiallyflat and of blade-like formation and the part without said sectionenlarged and provided with ink feeding grooves, the said supplementalpoint section being uniformly cut away to form an intermediate flattenedportion providing an air chamber between said section and the main pointsection, air channels leading from said chamber t0 the atmosphere, airchannels formingV communication between the air chamber and the inkreservoir and an air venting aperture connecting the reduced portion of'said supplemental point section with the cylindrical bore of saidsection.

In testimony whereof I aiiiX my signature.

' JULIUS ABEGG.

